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A hot spot data detection method and device

A technology of hotspot data and detection methods, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve the effect of improving overall performance, enhancing efficiency, and improving access performance

Active Publication Date: 2016-08-17
INSPUR BEIJING ELECTRONICS INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing methods, only the frequency of access is considered. In actual applications, due to the correlation of application data reading and writing, only considering the frequency of IO and the granularity of blocks has certain limitations.

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  • A hot spot data detection method and device
  • A hot spot data detection method and device
  • A hot spot data detection method and device

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Embodiment Construction

[0029] It is considered in this application that, for example, in the application of library management, the information including book title, publication date and serial number is entered for the first time, and in the specific book borrowing activities, the name, title and serial number of the borrower are recorded. , every time you inquire about the use of this book in the future, the information of the borrower will be indexed at the same time, so that the two types of data are related. In this application, when identifying hot data, the correlation between data is considered.

[0030] This application considers the correlation between data blocks, such as data block A, data block B, data block C and data block D have the same access frequency, and there is a correlation between data block A and data block B, such as in When data block A is accessed, data block B is also accessed, so it is considered that data block A and data block B have a higher priority, and data block ...

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Abstract

The invention discloses a hot data detection method and device, the method comprising: determining the value of the data block k according to the correlation coefficient between the data block k and one or more data blocks and the frequency of reading and writing of the data block k, the correlation coefficient Indicates the degree of read-write correlation between two data blocks; determines whether the data block k is hot data according to the value of the data block k and a preset data migration strategy. The present invention determines the value of the data block according to the correlation coefficient of the data block, determines whether the data block is hot data according to the value of the data block, can make the detection of hot data more accurate and reliable than the traditional method, and enhance the efficiency of data migration without increasing the hardware On the premise of low cost, the hotspot data can be migrated between the inner and outer tracks of the disk according to the value, which can effectively improve the access performance of the disk, thereby greatly improving the overall performance of the disk array.

Description

technical field [0001] The invention relates to the field of disk arrays, in particular to a hotspot data detection method and device. Background technique [0002] The demand for large-capacity storage in practical applications prompts the birth of RAID (Redundant Arrays of Inexpensive Disks, disk array) technology, and forms disk array products. With the continuous development of cloud computing, cloud storage and other technologies, the information storage capacity is growing explosively, and the demand for disk arrays is increasing. As a shared resource, the storage system needs to provide services to many different types of applications at the same time. Different types of applications have different load characteristics and performance requirements. Many applications have high requirements for random IO concurrency when accessing the storage system. In order to meet the application requirements and improve the storage system's ability to process IO requests per second...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 李伟国吕烁
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND